Check your font attributes.  Select your font tool and hit control+T, it will bring up your attribute window.  In there you can change the kerning, spacing, size, etc.
Oh, and I almost didn't type this because you said you used Comic Sans.  That is one of the worst fonts ever created and I hate it with a passion.  The two fonts I would kill if they were actual human beings are Comic Sans and Papyrus...god I hate those two fucking fonts!!!!
Good luck, hit me up on ICQ if you need anymore help.  It's in my sig. 
